Shock absorber for vehicles



Oct. 5 1926. 1,602,328

C. A. BLUHM SHOCK ABSORBER FOR VEHICLES Filed July' 1o, 1925 2 shets-sheen 1 t i Wil:

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C. A. BLUHM sHocKA ABSORBER Fon vEHIcLsf Filed July 10. 1925 2 Sheets-Sheet 2 Patented 1926.

Q A. BLU-mir, or MICHIGAN crrx, INDIANA'. i

` snoek Arsonnn ron vniircnns.

,I f n'pimatn mea my io, 1925. serial No. 42,693..

vThis invention relates to an improvement v in shock absorbers for'vehicles.

' Fig. 2 is a transverse section'on the lines The object of the invention is to provide an improved shock absorber, which, when placed between the vehicle axle and the chassis, will automatically absorb the shock, 1mparted to the vehicle by uneven places and holes in the road. The initial compression is taken up by coil springs, housed within the cylinders, and as a further. cushioning means, air is admitted into the cylinder so as to check the rebound.

This invention is more particularl d irected to an improved `dust hood, which is placed about the lower-most cylinder 'and is .so connected'wi'th the upper andl lower cylinders as to removably connect the same together. A. space is provided between the cylinders and the cylinder dust-gu receiving andicontaining lubricating oil to lubricate the'cylinders as they are compressed. 4 t n Improved means is also provided in this invention for securely fastening the shock absorber to the vehicle by (providing cupshaped extensions on the en s of the cylinders over which extensions brackets are fitted and secured, the brackets in turn being connected directly to the A.frame or axle ofthe vehicle. The cup-shaped extensions are provided with a notch in the edges thereof into which lugs carried by the brackets are adapted-to fit, so as to provide a means for holding the cylinders in a fixed position, relative to the brackets.

In the accompanying drawings Fig. 1 is a vertical section of my improved shock absorber as applied to the vehicle;

2-2 of Fig. 1;

- Fig.' 3 is a side elevation of the shock absorber as shown in Fig. 1;

Fig. 4 is a transverse section on the lines 4-4 of Fig. 3;

Fig. 5 is a side elevation of my improved shock absorber as applied to the front axle of the vehicle;f

Fig. 6 is a detail side elevation partly in section of the securing bracket for said front shock absorber;

Fig. 7 is a perspective view of the lower securing bracket for fastening the lower end of the shock yabsorber to the front axle;

Fig. 8 is a perspective view of the top cylinder detached;

ard for Fi 9 is a perspective view of the dustlguar detached;

Fig. 10 is a perspective view of the hanger supporting bracket for attaching theshock absorber to the rear -axle housing of the vehicle; and Fig. 11 isa-perspective view of the clamping bracket for cooperating with' the hanger bracket, shown in Fig. 10.

As shown in Figs. 1 and 2, the numeral 1 indi-Cates theirear axle lhousing of the vehicle, and the numeral 2, thelvehicle frame or chassis. Secured to the housing 1- is a hanger supporting` bracket 3 provided with side notches 4, for receiving the forked `ends 5 of the clamping bracket 6. The hanger bracket 3 and clamping bracket'6 surround the re'ar axle housing 1 and are clamped tightly thereon by ,means of the bolts 7. The hanger supporting bracket 3 terminates `in a cup-shaped extension 9-on the cylindrical dust-guard 10. The dust-guard 10 is provided with an 'inwardly extending Harige 11, provided withslots 12 therein, as shown y formed on the upperend of th upper cylinder 14 and the cup-shaped end 19 of the upper bracket 20 fits over this extension 18,

and is secured thereto'by means 'of a bolt 21. The bracket 2O is provided with a forked end 21', which fits over and is secured to the chassis frame 2 b means of the bolt 22. Seats 23 are forme on thejnner ends of the cylinders 14 and 15 for receiving the ends' of thel spiral cushioning spring 24, which is housed within these cylinders Ato -act as a shock vabsorbing means, and as a further means for this purposefa small oriice 25 is formed in the upper end of the cylinder 14 so as to slowly admit air into the cylinders but to limit the outlet of air solas to confine it to a certain extent within the .cylinders in order that it may also act as a cushioning means. e The space between vthe cylinders 10 and 15 is adapted to receive lubricating oil through the opening 12, and holes 26 are 'provided in the cylindrical guard 10 to act 2. A'/shockabsorber-includin as an over- How for the oil, and a drain-plug 27 is provided inlthe'lower end of the cylinder for draining the oil from this space.l A notch 28 is vformed on each of the cupshaped extensions 16 and 18 for receiving a lug 29 formedon each of the cup-shaped v members 9 and 19, so asto. prevent the cylinul- '.,ders from turning, relative to thebrackets.

f is-fmerely in the form of brackets for securv'llh'e variation, shown in Figsg, 6, and 7 l .ving the shock absorber to they vehicle, the

'. bracket 30 has the clamping jaws 31 at the" outer end thereof for clamping the lower end of the: shock absorber 32 tothe front' axle. The upper bracket 33 is provided with a hooked lower end 34 for engaging the chassis frame 2 and is secured to this frame by means of the bolt 35, so as to secure the upper end of this front shock absorber to the front end of the chassis frame.

In assembling the device, the upper and lower cylindersV 14 and `l5 are secured to the respective supporting brackets by means of thebolts 17 and 19, after which a spring 24 Ais placed between the cylinders and compressed `thereby as the cylinders are brought together with the lugs 13, registering with the openings 12 so as to allow the upper cylinder to slide into the cylindrical guard' l'10, when this upper cylinder is given a onequarter turn,so as to bring each of the lugs 13 mid-way between the` openings 12 forining an abutment to prevent the cylinders from being forced apart. The device is now ready to be assembled von the vehicle either at the front or rear thereof, and if at the rear, the supporting brackets 3 and 20 shown in Figs. 1 and 3 must be used, but if it is used on the front 0f the vehicle, the supporting brackets 30 and 33 shown in Figs. 5 and 7 must be used.

It will thus bejseenthat I have. provided an improved shock absorber which may be 'easilyand quickly installed-on the vehicle and will provide for checking up any shock causedv by uneven surfaces in the road, and

the air used in connection with the .spiral spring actsto take up the rebound of the s oc v f The numeral 36 indicates a packing ring 1n the upper'end ofthecylinder 15. The

l vnumeral 37 indicates a gasket interposed between the lower ends of the cylinder 15 and dust-guard 10, in o'rdervto revent the oil from workin through ythe si es of .these cylinders and t rough 'the openings surrounding the bolts 17.

vllf claim 1. A shock absorber including telescopic cylinders, shock absorbing means therein.

and a dust guard connected with and space apart from one of said cylinders, providing a space therebetween for receiving and containing a' lubricant.

jecting lugs thereon, and a cylindrical dust guard having openings therein for receiv in the lugs for removably connecting said cy inders together.

4. A shock 'absorber including upper and lower telescopic cylinders, a spiral spring interposed therebetween, the jun'oer cylinder having an ai'r vent therein and'havin laterally projectlng lugs thereon, a cylin rical dust guard haylng openings therein for receiving the lugs for removably connecting said cylinders together, said dust ard being spaced apart from the cylineis, providing a space therebetween` for receiving a lubricant, and means for securing the shock absorber to a vehicle.

5. A shock absorber including upper and lower telescopic cylinders, a spiral spring housed therein, said upper cylinder having an air vent therein, and having lateral projections on the sides thereof, a cylindrical Vdust guard having openings thereln for re ceiving the lateral projections and removably connecting `the cylinders together, said cylinders having cu shaped projections on\ the ends thereof, an brackets tted over and secured to said cup-shaped projections for connecting the cylinders toa vehicle.

6. A shock absorber including upper and lower telescopic cylinders, a spiral spring housed therein, said upper cylinder having an air vent therein, and having lateral rojections on the sides thereof, a cylindrical dust guard having openings therein for removably receiving the lateral projections,

said cylinders "having cup-shaped projec-z` tions on, the ends thereof, brackets itted over the cup-shaped projections and connected with a vehicle, and means for secur-` ing the brackets to thecup-shaped projections in a xed position relative to each other. A

7 The combination with a shock absorber having a substantially cylindrical extension formed thereon, of a bracket fitted over said extension for securing the shock absorber to a ve'hicle, and means forreventing a turning movement of the brac et relative to said extension. n f

8. The combination with a shock absorber having a substantiall cylindrical extension formed thereon, of a racket fitted over said extension for securing the shock absorber toy a vehicle, said extension' having a notch formed therein, and a lug 'formed on the Leoaae bracket for engaging the notch and preventing a turning movementJ of the bracket reiative to said extension.

9. The combination with a shock absorber, of means or` securing said shock absorber to the frame of a vehicle, including a hanger bracket secured to and extending outwardiy from said shock absorber, said? hanger bracket being fitte over the frame and having notches formed therein, anti a clamping bracket having a orke en received in the notches and secured in posi tion under the frame to the hanger bracket. l

10. rEhe combination with a shock abe sorber, of means for securing said shook ab- Sorber to the frame of a vehicle, incluing a hanger bracket secured to anoi extending outwardiy from said shock absorber, saici hanger bracket being connected with the frame and having a `notch formed therein, and a clamping bracket having an-end receved in the notch and secnreoi in position to the hanger bracket.

n testimony whereof ax my signature CHARLES A. BLUHM. 

